Least Common Multiple

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Find the *Least Common Multiple* (LCM) of the numbers 20 and 2.

**Answer**

$20=({2}^{2})(5)$

$2=(2)$

The LCM of 20 and 2 is the product of the largest powers of each prime factor in both.

Thus the LCM of 20 and 2

$=({2}^{2})(5)$

$=20$